I also have USB Ethernet dongle and i have tired to use Kostek's modules but did not work on my B550.

I have "internet enabled kernel" which is installed during firmware downgrade process described by juuso .Maybe the dongle has a different chip . With the help of Everest program , i saw that the manufacturer is Moschip Semiconductor , and chipset is 7830.

Can someone help me or prepare the drivers ? I can not easily compile and prepare files in "ko" format. Either the compiled files or a detailed help with all commands etc. needed. Do i have to uninstall Kostek's drivers too?